Patents by Inventor Terrence M. Stuhldreher

Terrence M. Stuhldreher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8272860
    Abstract: A tire mold having a substantially elliptical base surface and a method for making a tire mold are provided. In one embodiment, a user selects a major axis length for the tire mold, then selects a ratio of the major axis length to a minor axis length. The tire mold is then formed with a substantially elliptical base surface defined by the first major axis and the selected ratio.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: September 25, 2012
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventor: Terrence M. Stuhldreher
  • Publication number: 20100255134
    Abstract: A tire mold having a substantially elliptical base surface and a method for making a tire mold are provided. In one embodiment, a user selects a major axis length for the tire mold, then selects a ratio of the major axis length to a minor axis length. The tire mold is then formed with a substantially elliptical base surface defined by the first major axis and the selected ratio.
    Type: Application
    Filed: June 16, 2010
    Publication date: October 7, 2010
    Applicant: Bridgestone Americas Tire Operations, LLC
    Inventor: Terrence M. Stuhldreher
  • Patent number: 7780891
    Abstract: A tire mold having a substantially elliptical base surface and a method for making a tire mold are provided. In one embodiment, a user selects a major axis length for the tire mold, then selects a ratio of the major axis length to a minor axis length. The tire mold is then formed with a substantially elliptical base surface defined by the first major axis and the selected ratio.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: August 24, 2010
    Inventor: Terrence M. Stuhldreher
  • Publication number: 20090000713
    Abstract: A tire having a circumferential tread with segmented sipes is provided. In one embodiment, the tire has tread blocks with sipes having at least three segments. The sipe may include a first major segment, a second major segment, and a minor segment connected to both the first major segment and the second major segment. In alternative embodiments, the sipe may include three or more major segments, connected by a plurality of minor segments.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 1, 2009
    Inventor: Terrence M. Stuhldreher
  • Publication number: 20080289789
    Abstract: A tire mold having a substantially elliptical base surface and a method for making a tire mold are provided. In one embodiment, a user selects a major axis length for the tire mold, then selects a ratio of the major axis length to a minor axis length. The tire mold is then formed with a substantially elliptical base surface defined by the first major axis and the selected ratio.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 27, 2008
    Inventor: Terrence M. Stuhldreher
  • Patent number: 7360568
    Abstract: A tire having sipes is provided. The tire includes a circumferential tread configured with at least one rib bound by at least one groove. The rib has a plurality of sipes that extend from the groove into the rib wherein one or more of the sipes narrow in a direction from the groove into the rib.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: April 22, 2008
    Assignee: Bridgestone Firestone North American Tire, LLC
    Inventor: Terrence M. Stuhldreher
  • Patent number: 4943609
    Abstract: A curable rubber bladder stock containing esters of ricinoleic acid or derivatives thereof has reduced viscosity as compared to stocks containing castor oil. The rubber stocks of the present invention generally retain a very high percentage of the initial cure tensile strength and have improved modulus as compared to castor oil, both upon initial cure and upon aging. Lower viscosity and higher modulus of the rubber stocks of the present invention readily permit the production of thinner bladders. The bladders can fit within an article such as a tire during vulcanization of the tire as in an automatic vulcanizing press. Thinner bladders effect a greater heat rate and result in shorter cure times for articles such as tires. The esters of ricinoleic acid and derivatives thereof have the formula ##STR1## where R is H or ##STR2## where R.sup.1 is an aliphatic, preferably an alkyl, having from 1 to 12 carbon atoms, desirably from 1 to 4 carbon atoms, and preferably 1 carbon atom, i.e., methyl, and R.sup.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: July 24, 1990
    Assignee: The Uniroyal Goodrich Tire Company
    Inventor: Terrence M. Stuhldreher
  • Patent number: 4531902
    Abstract: The quality and useful life of curing bladders used in standard "Bag-O-Matic" tire vulcanizing presses is greatly improved by replacing the standard split two-piece core of the bladder mold with a unitary core which forms a disc-like rubber diaphragm below the core and integral with the rubber curing bladder at the periphery of the core. A unique base plate fits in the lower mold half below the core and has a grooved upper surface to hold the diaphragm in place so that the core can be removed manually or automatically with the assistance of internal air pressure.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: July 30, 1985
    Assignee: The B. F. Goodrich Company
    Inventors: Terrence M. Stuhldreher, Rene L. Rockarts
  • Patent number: D451057
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: November 27, 2001
    Assignee: Bridgestone/Firestone Research, Inc.
    Inventors: James G. Guspodin, Terrence M. Stuhldreher